Lock and Flints Help

[IanH]

Looks like the frizzen is bouncing off the flint arch and reengaging periodically in the stroke.

That's because the lower jaw needs to be raised about 1/8" higher and then angled down to hold the flint at rest just like it does now so it will "slice" like Hanshi says. I tried creating the same effect with a tapered, aluminum lower jaw shoe and it sure helped but I'd have to bend the cock too and make a flat shoe to keep it from spitting out the flint.

I love it. Go to the trouble to make a video for a guy and never hear from him again.

 

[M. De Land]

That's because the lower jaw needs to be raised about 1/8" higher and then angled down to hold the flint at rest just like it does now so it will "slice" like Hanshi says. I tried creating the same effect with a tapered, aluminum lower jaw shoe and it sure helped but I'd have to bend the cock too and make a flat shoe to keep it from spitting out the flint.

I love it. Go to the trouble to make a video for a guy and never hear from him again.

I had to heat and bend the cock on a Yazel match pistol to get it to work right but it now does. The main thing is to keep the bearing axis square/ parallel to the frizzen face laterally and a proper length flint should begin to engage and shear steel about a third the way down the frizzen.
Don't try to cold bend them as it will very often crack partially or completely. I have checked the heat treat on them with a spring loaded prick punch and caliper , measuring the dimple diameter and comparing it to the same in annealed mild carbon steel. The cock is partially hardened but I do not have an exact Rockwell C scale number to give.
I did not re-harden the cock arm not knowing the cast steel alloy numbers but did keep the heat local to the bend, mid arm with heat control paste . The cock arm is holding the reformed shape and is working well.

 

[deerstalkert]

best lock out of the box i ever used was Kiblers Colonial. any problem has to be with the flint. shame you ground on that frizzen.

 

[bigted]

Jim replied up a few. He said to contact them and they will solve your problem ... easy peasy.

I paid a lot of cash for a Montana built Sharps years ago and they were fabulous to work with on the used 74 I had acquired